Heating principle of induction melting furnace

The induction melting furnace is mainly composed of a power supply, an induction coil and a crucible made of refractory materials in the induction coil. The crucible contains metal charge, which is equivalent to the secondary winding of the transformer. When the induction coil is connected to the AC power supply, an alternating magnetic field is generated in the induction coil. Since the charge itself forms a closed loop, the secondary winding is characterized by only one turn and is closed. Therefore, induced current is generated in the charge at the same time, and when the induced current passes through the charge, the charge is heated to promote its melting.

The induction melting furnace uses an intermediate frequency power supply to establish an intermediate frequency magnetic field, which generates induced eddy currents inside the ferromagnetic material and generates heat, so as to achieve the purpose of heating the material. The induction melting furnace uses a 200-2500Hz intermediate frequency power supply for induction heating, melting and heat preservation. The induction melting furnace is mainly used for melting carbon steel, alloy steel, special steel, and can also be used for melting and heating of non-ferrous metals such as copper and aluminum. The equipment is small in size. , Light weight, high efficiency, low power consumption, fast melting and heating, easy control of furnace temperature, and high production efficiency.